Machine for molding insole flanges



June 29 1926. A. H. PRENZEL ucnma FOR momma msom: rumns Filed July 9, 1925 INVENTOR .fla'a/iofl Praia/Z66. BY A 1% ATTORNEYS Patented June 29, 1926,

' Aime n53 sit-mean; on HALIFAX, mmsiwmm.

MACHINE Ion [MOLDING INSOLE ELANGES.

Appli cation filed my 9, 1925. Serial No; 42,545."

This invention relates to improvements in shoe-inachinery; and it consists of the con structions; combinations and arrangements herein e rib dafld a med n An object of the inyei tionis toprovide a machine for sotreating, formingorj molding the flange of an insole onothei 7 shoe sole a pre n sia' p tanding; ut curv relationshipfto the; sole: thereby making the flange n ore readily accessible to. theanvil of a; lastingmacliihe; 4

Another object QfithQ lnVBIltlOlLlS tO providemeans for molding a'sole'flange into. a predetermined shape by a reciprocating motion. I

Other 'object s'jaind advantages appear in the following specification, reference being had tothe accompanying drawing,' in Which 3 i I p Figurel-isa side elevation of the moldrma nei- Figure 2 is a detail section of thereciprocating plunger, parts beingshown in elevau 7 V- 1. v. iF igure 3 is a sectional yiew'on an-Penlarge df scale illustratingthe action" of the hammer in molding the channel fiangefofa o es e .1 .v ff Figure't is a detail sectional View taken substantially. on the line tl of Figure 3. Figure :5 lSz1 ClB t21ll front elevation'o'f the lower. part of the anyil plate The herein describedniaohine is for the purpose of carrying out one oi the ste s pf a process in making the "insole disclosed in lny 'co-pending' application; for Letters Patent'jon moldedfiang e insole and .process of making the same, filed. July 9, 1925, Serial Number 4;2,544. In Figure S the insole is peripherally channeled' at 2 to; produce a flange 3. This flange fitsclosely to the sole somewhat uneertairifand more or; less-dinicult: It isthejpurpose of the invention to so mold th'eflangeflthat itassumes a definite upstandingrelationship to the sole, thereby ing a y o un de nce l ne th lasting nachine an il While staples of other tempo ra ry fastening-means, for such upper structureare: inserted;

stud 21.

dire'ctio'n oft-he axis of vthe 'stiidls I A trame" 4 carries an anyil plate 5 upon a pivotal support 6' for coacti on with a hamlner The anvil plate: has -'a recess 8" with W iQ eh'e d c ws ame th fl g 3 its cross sectionally curved formation.

adjacent surfaces of the recess'ancl hanimer head appropriately s curved. The curved surfacesentend across the aiiiiilplate and hainnier head respectively. The anyi'l plate has an opening 10 which the haininer 7 extends to. as siiine ,the proper "1-515- tion sliipto the anvilgplate." The haniiiier assuines the shapefofa hook, butiirpra'ctice theformationniay he othetwisel Clamping nieans 11 pr vid an appropriate mounting the haininierl uponi- "a plunger 1 2, The plunger made-intuit) parts and includes the inner section 13': T'l1 i 5 section is pivotal'ly connected at 5 life) the strap of a-n eccentric of the shaft 17, upon which; theeccen'tr' c, is mounted; means of the driye pulley ltl causesrapid: reciprocation ofthe m r ni t ime? 7 gotta; t ee-sage 3 is formed or' moldedas the shQso1e'1 is;ad?

,valnc'eid pasttthe aiiy il. lates; This ea yancelnent of the-insole is' facilitated by the revOluble table 19 aiidfguide u heelf These eleInent-s arelo oselyinou nted npon'lfa The loose. mount g permits limited yielding of the guide Wl'ie'el iZ O the shoe-sole can he inoyed past the t l place With greatfieedoin. The rev olulol e i table and guide iyh-eel act much 011 the" o'rd eif a roller beafing foii theedg'e of the sh'o'efsole.

The gu idel wheell isnheyeled' f to niatcht-l 'e beveled; edgeth, sho efsole, but in the event of a shoiej sol e, of another sliapetlie guide heel 2Q be'fsub'stituted"byfaii- I other of correspondingly 7 appropriate shape. and thus makes the operation of fitting the i flange upon the anvil o'f-a lasting inachine thre aded' end of the stud exteiids through a slot Qiin an-inclined extension 25' upoi1 Which the revoliible table and guide wheels are held by anut 26. The arrangementpro- Vi1des for for w ard or rearyvard. ad ustment of, the table and; guide Wheel in" respect to the any il rece's s"" 8" so i "that an appropriate r in "on a suitable support.

amount of room can be provided for the edge of the shoe sole. The channel flange 3 may occur farther to the interior of a certain run of shoe soles and in such caseit is advisable to adjust the stud 21 to the rear so that there may be room for the. sole'edge which is more pronounced in this case.

Adjustments of the anvil plate 5 are made by a set screw 27 and fixed by a screw 28. The first merely bears against the back of the anvil plate but the second, passesthrough a slot 29. Upon loosening the lock screw 28 and turning the set screw 27 to-the right, the anvil plate 5 is caused to swing upon its y 'vot 6 so that the recess 8 is brought slightly higher in respectto the hammer head 9 and the concavity in the flange 3 is formed higher or farther toward the feather edge as a result. 1

This adjustment of the anvil plate 5 calls for limited yielding of the hammer 7 when performing a stroke. The range of action of the eccentric 16 is fixed, but a spring 80, interposed between the plunger sections 12 and 13, provides for any necessary yielding of the hammer 7. The plunger 12 has a stem 1 31 which is smaller in diameter than the bore 32 in the inner section 13. The resulting space'houses the spring 30 between a head 38 on the extremity of the stem and a suitable closure 34L at the opposite end of the bore. The closure may be formed either by upsetting the end of the section 13 after theparts are in place or by applying a washer or the like to hold the spring in place.

The operation is readily understood. The shaft 17 upon being driven causes the eccentric 16' to impart a rapid reciprocating motion tothe plunger 12 and its inner connected section 13. The plunger has appropriate bearing in the frame 4 and the frame is of such design that it is readily mounted The hammer 7 reciprocates in front of the anvil plate 5. There is a space between the recess 8 and hammer head 9 and a space between the hammer head 9 and table 19. The channel formed'by the combined spaces is intended to receive the flange 3 of a previously channeled and moistened insole 1. The hammering action of the head 9 against the flange 3 is readily started and the operator has only to move the sole past the anvil plate 5 when the rapid reciprocation of the hammer gives the flange the desired upstanding and curved or concaved formation. The formed or molded flange remains in the position given it by the hammer head, and when dried 1s ready for other steps in the process of mak ng a shoe.

WVhile the construction and arrangement of the improved insole flange molding machine is that of a generally preferred form,

obviously modifications and changes may be made without departing from the spiritof the invention or the scope of the'claims.

I claim 1- V l. A machine of the character described comprising a table, an anvil providing a support for the table which serves as a guide for a flanged shoe sole while moving across the anvil, and a recriprocating hammer operating against the anvil to mold the flange into a predetermined cross sectional shape.

2. A machine of the character described comprising a table, an anvil plate having a recess and-an opening, said plate providing a support for the table which serves as a guide for a flanged shoe sole while moving across'the anvil, and a reciprocating hammer operating in said opening and being formed into a shape to confront the anvil recess to strike beneath the sole flange and drive it againstsaid recess. V

3. A machine of the character described comprising a frame, a table, an anvil plate having a flange-forming portion and an opening, said plate' supporting the table which guides at flanged shoe sole while mov ing past the anvil, a hammer reciprocating in said opening being formed into ahead to'strike beneath the sole flange and press the flange against the flange-forming por tion of the'anvil to mold the flange into a predetermined cross sectional shape, a plunger by which the hammer is carried and reciprocated, means pivotally mounting the anvil plate upon theframe, andmeans for adjustably rocking the anvil plate upon its pivot. V 7

4. A machine of the character described comprising a frame,a table, an anvil plate having an opening and a recess, a plunger in two sections, means to reciprocate the plunger, a hammer carried by oneof the plunger sections and being operable in said opening, means to support a flanged sole during movement said hammer striking be neath the'flange of a solepassing across the table pressing it into the recess to mold the flange into a predetermined cross sectional shape, a pivotal mounting "for the anvil plate upon the frame, means to adj ustably rock said plate upon its mounting to vary the anvil recess in respect to the hammer, and yieldable means interposed between the sections of the plunger permitting corresponding yielding of the hammer in respect to the anvil when necessary. 7 v

5. The combination of a plunger in two sections, means to reciprocate the plunger, a hammer carried by the plunger said ham- -mer having a head, an anvil plate having a recess opposing the hammerhead, means to ad ust the anvil plate in a curvilinear direction so that the recess becomes located higher or lower in respect to the hammer and yieldable means interposed between the sections of the plunger permitting corresponding yielding of the hammer when required by virtue of the adjustment of the anvil.

6. A machine of the character described comprising an anvil plate having a recess and an extension, a reciprocable hammier having a head driving the flange of a sole against said recess, means by which the sole is supported and guided, said means ineluding a table With which the bottom of the sole contacts and a Wheel against which 10 the edge of the sole runs, and means carried by the extension providing a common revoluble mounting for the table and Wheel.

ADAM H. PRENZEL. 

